Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4575442 | Making heart valves | Ewald Hennig, Friedrich Zartnack | 1986-03-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4575442 | Making heart valves | Ewald Hennig, Friedrich Zartnack | 1986-03-11 |